Eilleen Farrell who died recently told an Ed Sullivan story that was interesting. the drill was show up in the morning, with full orchestra for rehearsal, than there was a TAPED dress rehearsal in the afternoon, Ed would watch the tape, and if there was something he didn't like he'd change it. Eilleen had an aria prepared, rehearsed, taped, Ed wanted her to change it to another aria he preferred. The orchestra was called back from break, they had to rehearse it quickly, then show time. SHe said they had a contract for 4-6 more future appearances, she canceled it and never appeared again. Said life was too short for that kind of aggravation.